(19)

(11)

EP 4 305 267 A1

(12)

(43) Date of publication: 17.01.2024 Bulletin 2024/03 (21) Application number: 21930576.0 (22) Date of filing: 30.08.2021

(51) International Patent Classification (IPC):  E06B 9/42(2006.01) E06B 9/74(2006.01) (52) Cooperative Patent Classification (CPC): E06B 9/42; E06B 9/72; E06B 2009/247; Y02A 40/25 (86) International application number: PCT/US2021/048164 (87) International publication number: WO 2022/191869 (15.09.2022 Gazette 2022/37)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 12.03.2021 US 202117199612 (71) Applicant: Li, Jeff Wh Irvine, CA 92620 (US)	(72) Inventor: Li, Jeff Wh Irvine, CA 92620 (US) (74) Representative: Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte  Am Brauhaus 8 01099 Dresden 01099 Dresden (DE)